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Finding the Fourth Proportional to 2,738,809.20, 4,098,882.60 and 2,738,809.20

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Solution

The fourth proportional to 2,738,809.20, 4,098,882.60 and 2,738,809.20 is: 4,098,882.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738,809.20 : 4,098,882.60 = 2,738,809.20 : x
  2. Step 2: Convert to fraction form
    2,738,809.20/4,098,882.60 = 2,738,809.20/x
  3. Step 3: Cross multiply
    2,738,809.20x = 4,098,882.60 × 2,738,809.20
  4. Step 4: Simplify right side
    2,738,809.20x = 11,226,057,374,599.92
  5. Step 5: Solve for x
    x = 11,226,057,374,599.92/2,738,809.20
  6. Step 6: Final answer
    x = 4,098,882.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.